I read his book Quantum Computing Since Democritus and got stuck early on where it actually starts getting into quantum computing. IMO the book is great when yo

I read his book Quantum Computing Since Democritus and got stuck early on where it actually starts getting into quantum computing. IMO the book is great when you already vaguely understand the material (so I coasted through the early chapters on set theory, computability, and complexity) but hit a wall just past the point where he introduces 2-norm. Anyone else have this issue? Can you understand quantum computing without understanding quantum mechanics?